MerCruiser 43-18411A2 Upper Unit Gear Set V8 305 350 1.50:1 Alpha One Gearcase Internal Engine Parts 1978 1979 1980 1981 1982

1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 Sterndrive

0L / 350 5

45-24808A1

This would have been found on all of the standard OMC Cobra models & Volvo Penta SX 1989-1998 ***(1986-1988 Models used a different longer water tube)***

MC 225-S (225 (4 BBL

MerCruiser 43-18411A2 Upper Unit Gear Set V8 305 350 1.50:1 Alpha One Gearcase Internal Engine Parts 1978 1979 1980 1981 1982Item Details The gears are For All V8 applications for Pre Alpha R MR ALPHA ONE Gen 1, so 1970 1990 as a general rule. (Actually these were also used on Gen II drives 1991 1997 but you would have to swap out the shafts and bearings) The gear set here is MerCruiser 43 18410 43 18411 1 > 43 18411A2 (Also Equivalent to Sierra 18 2202) 20 22 (tooth count) 1. 50: 1 1. 47: 1 Ratio for V8 GM Chevy 5. 0L 305 & 5. 7L 350 sterndrive engines. (Early Ford as